Beat adjustment

[dnhb]

I'd be grateful for recommendations of good sources of advice on getting clocks with balance spring - as opposed to pendulum - escapements 'in beat'.....

[oldhippy]

I don't know if there is a timing machine for balance spring clocks. If not it is a case of trial and error. You should make a note of the position of the regulate and work from there.   

[transporter]

Has it got a beat adjustment on the platform or is it a fixed hairspring? in short what you are looking at to get it just about in beat is to get the roller jewel sitting dead centre between the banking pins.

So remove the platform and take of the pallet fork and escape wheel to give you clear line of site, sit the platform with the balance in place and with it level look between the banking pins and see if the roller jewel is sitting between them, if it is nice and central its there or there abouts in beat, if its not the the position of the pinned end of the hairspring needs to be adjusted to move the roller jewel into the correct position, thats why I asked if it has an adjustment on the platform or not, if it has its an easier job.